As an Amazon Associate, we earn from qualifying purchases. Neptune Systems Conductivity Calibration Solution - 53000 Microsiemens - Bulk Reef Supply Neptune Systems . 207523 Gallery Attributes Brand name, Manufacturer name, ManufacturerNeptune Systems Extra Product NameNeptune Systems Conductivity Calibration Solution - 53000 Microsiemens - Bulk Reef Supply extendedQty, qtyInStock0 keywordssaltwater aquarium supplies, reef aquarium supplies, marine fish tank, live rock, GFO, protein skimmers, two part dosing, aquarium carbon, fish food, RO/DI Systems, ecotech marine, aquaillumination, neptune systems, kessil, innovative marine moq, multiple, tierMinQty11 MPN, SKU207523 qtySourceupdateFromUrlEntry snippet53000 µS Conductivity Calibration Solution - Use this calibration solution to calibrate your Conductivity Probe and PM2 for saltwater salinity monitoring applications. Conductivity probes can be used for many different functions from letting you know the salinity of a tank to the quality of RODI water. We suggest calibrating conductivity probes once every 3-6 months to keep readings reliable. 447 µS Conductivity Solution - Used for calibrating conductivity probe for freshwater applications. 53000 µS Conductivity Solution - Used for calibrating conductivity probe for saltwater applications. tierPrice12.99 Distributor offers SellerSKUMOQIn stockMultiplePrices bulkreefsupply.com207523111 @ $2.99